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range of any individual organism found on the pond. The A. O. U. check 
list, 1910, gives its range as: North America in general, but chiefly the 
Eastern Province north to Alaska and south to West Indies and northerr 
South America; breeds from northern United States northward. 
It is altogether probable that other water birds visit this pond. I have 
seen various species of ducks and sand pipers on similar ponds in this 
region. On the water works reservoir, a small artificial lake about three 
miles distant, ducks, loons, grebes, etc., may be seen almost any time 
during their migration period. McAtee (’05) lists 44 water birds from 
this region, 20 of which he marks as regular migrants. 
Agelaius pheeniceus Linnzus. 
Red winged blackbirds were first seen on the pond May 5, 1909. Two 
pairs nested during the summer of 1909 on the south part of the pond. 
rn 
The nests were attached to the Typha stems over the water. Three pairs 
nested near the same place in the pond in 1910. 
Many other birds were seen near the pond or perched on the Typha 
stems. The most common of these were: Turtle Dove, Zenaiduro ma- 
croura L.; Quail, Colinus virginianus L.; Tree sparrow, Spizella monticola 
Gmelin; Fox sparrow, Passerella iliaca Merrem; Field sparrow, Spizella 
pusilla Wilson; Junco, Junco hyemalis L. 
FLORA. 
Alga— 
Closterium dianze Ehrenberg. 
April 1, 1910. Common among filamentous alge. 
Cosmarium botrytis Menegh. 
Common, spring 1910. 
C. tetraophthalmum Kuetzing. 
Rare. 
Docidium crenulatum Rabenhorst. 
This and other species of this genus occurred sparingly in most col- 
lections. 
Spirogyra majuseula Kuetzing. 
During the winter of 1909-10. This alga developed in considerab!v 
quantity in the southern part of the pond. 
Zygnema stetlum Agardh. 
